My 408 stroker from blueprint seems to run rather hot. It’s the 465 horsepower one with aluminum heads that utilizes a 360 magnum block. In 85 degree plus heat, it has issues keeping cool. It runs around 210 even cruising at 60 mph. I’m running a 180 degree t-stat. It has an oer radiator for a 1970 340 duster, it has a 17x22 inch core, 4 cores deep, and the tubes are half inch, and it’s copper/brass. It is for an automatic transmission. It currently has a 17 inch 6 blade fan. I am in the process of getting a shroud, and I tried to install the Hayden 2947 fan clutch, and it is too long. So my questions are: are there shorter fan clutches? If not, what electronic fans work well? Is it normal for an engine that hasn’t broken in yet to run hot? And is my radiator an adequate size for this engine?(honestly don’t know if I can fit a much bigger one in this vehicle).